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The dynamic wetting of a polymer film by a particular liquid (with = 37 mN/m, = 32.5 cP) is being investigated in a plunge tank
The dynamic wetting of a polymer film by a particular liquid (with = 37 mN/m, = 32.5 cP) is being investigated in a plunge tank experiment, as seen in the figure below. The static contact angle is found to be = 20o , and the dynamic advancing contact angle observed when the film is drawn into the liquid at a rate of 5.25 mm/s is 45o . Estimate the rise-canceling velocity, which results when the dynamic advancing contact angle is 90o .
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